Github user zuyu commented on the pull request:
https://github.com/apache/incubator-quickstep/commit/8746eed4d06ee07d64cbef8ab7851c53c50e95be#commitcomment-20750205
In utility/lip_filter/LIPFilterFactory.cpp:
In utility/lip_filter/LIPFilterFactory.cpp on line 65:
If an input relation is empty, `filter_cardinality` is zero, and thus
system crashes.
Could @jianqiao please fix this bug, by either removing this check, or not
adding this filter at all?
Thanks!
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